J/A+A/601/A50ivo://CDS.VizieR/J/A+A/601/A50doi:10.26093/cds/vizier.36010050CDSMargules L.McGuire B.A.Senent M.L.Motiyenko R.A.Remijan A.,Guillemin J.C.2017-05-23T07:33:32Z2017-04-27T06:58:51ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.fratomic-physicsRecent experimental works have studied the possible formation of hydroxyacetonitrile on astrophysical grains. It was formed from hydrogen cyanide (HCN) and formaldehyde (H_2_CO) in the presence of water under interstellar medium (ISM) conditions. Because these precursor molecules are abundant, hydroxyacetonitrile is an excellent target for interstellar detection. Previous studies of the rotational spectra were limited to 40GHz, resulting in an inaccurate line list when predicted up to the millimeter-wave range. We measured and analyzed its spectra up to 600GHz to enable is searches using cutting-edge millimeter and submillimeter observatories. The molecule 2-hydroxyacetonitrile exhibits large amplitude motion that is due to the torsion of the hydroxyl group. The analysis of the spectra was made using the RAS formalism available in the SPFIT program with Watson's S-reduction Hamiltonians. The submillimeter spectra of hydroxyacetonitrile, an astrophysically interesting molecule, were analyzed. More than 5000 lines were fitted with quantum number values reaching 75 and 25 for J and K_a_, respectively. An accurate line list and partition function were provided. A search for hydroxyacetonitrile in publicly available GBT PRIMOS project, IRAM 30m, and Herschel HEXOS observations of the Sgr B2(N) high-mass star-forming region resulted in a non-detection; upper limits to the column density were determined.2017A&A...601A..50Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/601/A50CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+A/493/565 : Deuterated and 15N ethyl cyanides (Margules+, 2009)J/A+A/500/1109 : Rotational spectrum of HCOO^13^CH_3_ (Carvajal+, 2009)J/A+A/538/A51 : Rotational spectrum of CH_3_CH(NH_2_)CN (Mollendal+, 2012)J/A+A/538/A119 : Spectrum of ^18^O-methyl formate HCO^18^OCH_3_ (Tercero+ 2012)J/A+A/540/A51 : Submm spectrum of deuterated glycolaldehydes (Bouchez+, 2012)J/A+A/543/A46 : Submillimeter spectrum of HCOOCD_2_H (Coudert+, 2012)J/A+A/543/A135 : New analysis of ^13^C-CH_3_CH_2_CN up to 1THz (Richard+, 2012)J/A+A/544/A82 : Rotational spectroscopy of diisocyanomethane (Motiyenko+ 2012)J/A+A/548/A71 : Spectroscopy and ISM detection of formamide (Motiyenko+, 2012)J/A+A/549/A96 : mm and sub-mm spectra of ^13^C-glycolaldehydes (Haykal+, 2013)J/A+A/549/A128 : Singly deuterated isotopologues of formamide (Kutsenko+, 2013)J/A+A/552/A117 : Mono-deuterated dimethyl ether (Richard+, 2013)J/A+A/553/A84 : (Sub)mm spectrum of deuterated methyl cyanides (Nguyen+, 2013)J/A+A/559/A44 : Rotational spectrum of MAAN (CH_2_NCH_2_CN) (Motiyenko+, 2013)J/A+A/563/A137 : THz spectrum of methylamine (Motiyenko+, 2014)J/A+A/568/A58 : HCOO^13^CH_3_ rotational spectrum (Haykal+, 2014)J/A+A/579/A46 : Mono^13^C acetaldehydes mm/submm wave spectra (Margules+ 2015)J/A+A/590/A93 : Doubly ^13^C-substituted ethyl cyanide (Margules+, 2016)J/A+A/591/A110 : ^15^NH_2_ amidogen radical rotational spectrumJ/A+A/592/A43 : Millimeter wave spectra of carbonyl cyanide (Bteich+, 2016)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/601/A50https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/601/A50http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/601/A50https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/601/A50https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/601/A50http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/601/A50GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/A+A/601/A50/s1Measured frequencies and residuals from the global fit of the Infrared, and submillimeter-wave data for ^15^NH_2_recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJ"Upper J quantum numberinstr.det.qe;stat.maxintKa"Upper Ka quantum numberphys.atmol.qn;stat.maxintKc"Upper Kc quantum numberphys.atmol.qn;stat.maxintv"upper torsionnal levelphys.mol.qnintJ'Lower J quantum numberinstr.det.qe;stat.minintKa'Lower Ka quantum numberphys.atmol.qn;stat.minintKc'Lower Kc quantum numberphys.atmol.qn;stat.minintv'Lower torsionnal levelphys.mol.qnintFreqObserved transition frequencyem.freqdoubleO-CObserved - Calculated frequenciesstat.fit.residualdoubleuncUncertainty of measurementsstat.errordouble